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Synonyms

overnight

American  
[oh-ver-nahyt, oh-ver-nahyt, oh-ver-nahyt] / ˈoʊ vərˈnaɪt, ˈoʊ vərˌnaɪt, ˌoʊ vərˈnaɪt /

adverb

  1. for or during the night.

    to stay overnight.

  2. on or during the previous evening.

    Preparations were made overnight.

  3. very quickly; suddenly.

    New suburbs sprang up overnight.


adjective

  1. done, made, occurring, or continuing during the night.

    an overnight stop; an overnight decision.

  2. staying for one night.

    a group of overnight guests.

  3. designed to be used on a trip or for a journey lasting one night or only a few nights.

  4. intended for delivery on the next day.

    overnight letters; an overnight package.

  5. valid for one night.

    The corporal got an overnight pass.

  6. occurring suddenly or within a very short time.

    a comedian who became an overnight sensation.

noun

  1. Informal. an overnight stay or trip.

    Our daughter had an overnight at a friend's house.

  2. Informal. a permit for overnight absence, as from a college dormitory.

    She had an overnight the night of the prom.

  3. the previous evening.

verb (used without object)

  • overnights,
    present (3rd person singular)
  • overnighted,
    past participle,  past
  • overnighting
    present participle
  1. to have an overnight stay or trip.

    We'll overnight in Denver, then fly on to San Diego.

overnight British  

adverb

  1. for the duration of the night

    we stopped overnight

  2. in or as if in the course of one night; suddenly

    the situation changed overnight

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. done in, occurring in, or lasting the night

    an overnight stop

  2. staying for one night

    overnight guests

  3. lasting one night

    an overnight trip

    an overnight bank loan

  4. for use during a single night

    overnight clothes

  5. occurring in or as if in the course of one night; sudden

    an overnight victory

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to stay the night

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of overnight

Middle English word dating back to 1325–75; see origin at over-, night

Explanation

When something happens overnight, it occurs during the hours of one night. An overnight party can also be called a sleepover or a slumber party. (Pack your sleeping bag, but you probably won't use it.) You can use overnight as an adverb or adjective literally meaning "during the night" — like an overnight airplane flight or a guest who stays overnight on your couch. You can also use it figuratively, to mean "quickly" or "instant." After you publish your first book, you may be an overnight success; and after an important election, the world may seem to change overnight.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The whole thing went into a greased 8-inch baking dish and into the refrigerator overnight.

From Salon Sep. 22, 2026

The measurements represent earthquakes detected beneath Yellowstone overnight.

From Science Daily Sep. 22, 2026

Another overnight drop in oil prices doesn’t seem to be enough to continue the momentum, though.

From The Wall Street Journal Sep. 22, 2026

In 2020, it was global lockdowns that sapped demand for fuel almost overnight, while triggering a short-lived U.S. recession.

From MarketWatch Sep. 20, 2026

That even if we brought screechers back, nothing would change overnight.

From "Willodeen" by Katherine Applegate

And a few more hospital overnights than were on the holiday itinerary...

From BBC Aug. 13, 2026

Nobody imagined using Wi-Fi to livestream Thursday Night Football from a multinational tech conglomerate that also overnights toilet paper and garden gnomes.

From The Wall Street Journal Apr. 10, 2026

Elegant, clutter-free and homey, the condominium is a calm place to come home to after working long shifts, including overnights, at Children’s Hospital.

From Los Angeles Times Nov. 10, 2025

Many hikers take the relatively flat, beautiful path through coastal forest and ocean beach over one or two overnights.

From Seattle Times Dec. 28, 2022

I grabbed my pink canvas duffel bag, the one I’d planned to use for overnights the minute anyone asked me.

From "The Secret Life of Bees" by Sue Monk Kidd

Of the affected voters, a lawyer for the county told the court that 585 had already been overnighted a ballot or had canceled their absentee ballot and voted early.

From Reuters Nov. 7, 2022

Mr. Budowich said the committee overnighted a formal letter alerting him to the subpoena which arrived at his residence in California on Dec. 22.

From Washington Times Dec. 29, 2021

She occasionally overnighted about an hour outside Detroit with Judy Chiodo, a fellow Trump rally-trotter, rather than drive all the way home to Sault Ste. Marie.

From Washington Post Jul. 15, 2021

My sister overnighted me an oximeter so I could monitor my oxygen and heartbeat, and my oxygen level dipped to 90 but no lower.

From Los Angeles Times Jul. 8, 2021

Had we chosen an urban Quebec vacation we probably would have overnighted at Auberge de St. Antoine which offers a 40 percent winter discount.

From New York Times Nov. 26, 2018

The men in separate canoes were returning to shore after overnighting on the lake’s Deer Island.

From Washington Times Dec. 5, 2023

Since then, he’s been a fixture in Madrona, overnighting on metal bus benches that were impossibly small for his big frame, then lugging his bags up and down the hills.

From Seattle Times Nov. 22, 2023

But while overnighting there may be spiritually rewarding, it was physically demanding.

From New York Times Sep. 25, 2022

My friend’s mom notably wrangled our gang of overnighting 20-somethings with the imperturbable grace of a seasoned host.

From Washington Post Dec. 16, 2021

Sometimes he travelled closer to the city, overnighting in places like the Merri Creek reserve.

From Underground by Suelette Dreyfus

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